Does it make a difference on when you take your synthroid before a blood test? I feel like I am now hypo since a tt in june for the treatment of graves. I am tired all the time, getting a pot belly and gaining weight like crazy...but...when I had my blood taken in august, after being on 1.0 of synthroid, my tsh was .10 (.50-5.0 normal range). I had taken my med in the morning at 7:30 and had blood drawn at 9:45. Did that have anything to do with the low tsh? Now the doctor has lowered me to .75 of synthroid....I am so shocked at the hyper reading. I cant imagine what .75 is going to make me feel like. Can I call him and tell him what I did....take the medicine right before a test? Could that have made a difference? Thanks
My doctor tells me to always come before eating anything and without taking my meds. So I go first thing in the morning.
I know exactly what you mean....
My thyroid is tiny according to my endocrinologist. He explained that in order to feel better, I will probably have to be slightly hypERthryoidic on paper.
My GP however keeps wanting to lower my L-Thyroxine in order to keep me within normal ranges (on paper). But I know my body, and I certainly gain weight when I'm on anything less than I am. Even now, I sometimes lack energy and still have to really watch what I eat, and I'm on 100mcg T4 and a combo tablet of a further 100mcg T4 +20mcg of T3 (novothyrol).
I think my problem is really the conversion of T4 to T3... but I'm dealing with a bunch of monkeys here and I'm afraid to ask them in case they lower my dose.
To answer your original question -- If the dolt is only testing your TSH, you can take your Synthroid before the test. It doesn't affect TSH. It only affects free T4, causing a temporary spike for a few hours.
But I agree with the others... You need an MD who will test your free Ts each time, otherwise you'll keep having results like you're having... Feeling poorly and wondering why.